Supersonic jet impingement on a cylindrical surface

Joel L. Weightman; Omid Amili; Damon Honnery; Julio Soria; Daniel Edgington-Mitchell

Supersonic jet impingement on a cylindrical surface

Joel L. Weightman
, Omid Amili
, Damon Honnery
, Julio Soria
, Daniel Edgington-Mitchell

Aerospace Engineering and Mechanics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

13 Scopus citations

Abstract

A supersonic jet at an NPR of 3.6 impinging upon a cylindrical section at z/D = 3.5 is investigated using particle image velocimetry. POD illustrates that a stationary ﬂapping mode dominates the ﬂow, containing ≈ 40% of the speciﬁc kinetic energy. Instantaneous measurements show acoustic waves propagating in the entrainment ﬁeld. Based on the separation of these waves and an estimated wave speed of 332.5m/s, a frequency estimation of 8240Hz is obtained, which compares well to the microphone measurement of 8301Hz. A phase average is used to determine the convective velocity of the coherent structures. A range of 0.42-0.54U_j is obtained and the velocity used to estimate the sound source location, with good agreement with previous research.

Original language	English (US)
Title of host publication	22nd AIAA/CEAS Aeroacoustics Conference
Publisher	American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)	9781624103865
State	Published - Jan 1 2016
Event	22nd AIAA/CEAS Aeroacoustics Conference, 2016 - Lyon, France Duration: May 30 2016 → Jun 1 2016

Other

Other	22nd AIAA/CEAS Aeroacoustics Conference, 2016
Country/Territory	France
City	Lyon
Period	5/30/16 → 6/1/16

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@inproceedings{6a12d234f0104426bbd9bedb3b3b0203,

title = "Supersonic jet impingement on a cylindrical surface",

abstract = "A supersonic jet at an NPR of 3.6 impinging upon a cylindrical section at z/D = 3.5 is investigated using particle image velocimetry. POD illustrates that a stationary ﬂapping mode dominates the ﬂow, containing ≈ 40\% of the speciﬁc kinetic energy. Instantaneous measurements show acoustic waves propagating in the entrainment ﬁeld. Based on the separation of these waves and an estimated wave speed of 332.5m/s, a frequency estimation of 8240Hz is obtained, which compares well to the microphone measurement of 8301Hz. A phase average is used to determine the convective velocity of the coherent structures. A range of 0.42-0.54Uj is obtained and the velocity used to estimate the sound source location, with good agreement with previous research.",

author = "Weightman, \{Joel L.\} and Omid Amili and Damon Honnery and Julio Soria and Daniel Edgington-Mitchell",

year = "2016",

month = jan,

day = "1",

language = "English (US)",

isbn = "9781624103865",

booktitle = "22nd AIAA/CEAS Aeroacoustics Conference",

publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",

note = "22nd AIAA/CEAS Aeroacoustics Conference, 2016 ; Conference date: 30-05-2016 Through 01-06-2016",

}

TY - GEN

T1 - Supersonic jet impingement on a cylindrical surface

AU - Weightman, Joel L.

AU - Amili, Omid

AU - Honnery, Damon

AU - Soria, Julio

AU - Edgington-Mitchell, Daniel

PY - 2016/1/1

Y1 - 2016/1/1

N2 - A supersonic jet at an NPR of 3.6 impinging upon a cylindrical section at z/D = 3.5 is investigated using particle image velocimetry. POD illustrates that a stationary ﬂapping mode dominates the ﬂow, containing ≈ 40% of the speciﬁc kinetic energy. Instantaneous measurements show acoustic waves propagating in the entrainment ﬁeld. Based on the separation of these waves and an estimated wave speed of 332.5m/s, a frequency estimation of 8240Hz is obtained, which compares well to the microphone measurement of 8301Hz. A phase average is used to determine the convective velocity of the coherent structures. A range of 0.42-0.54Uj is obtained and the velocity used to estimate the sound source location, with good agreement with previous research.

AB - A supersonic jet at an NPR of 3.6 impinging upon a cylindrical section at z/D = 3.5 is investigated using particle image velocimetry. POD illustrates that a stationary ﬂapping mode dominates the ﬂow, containing ≈ 40% of the speciﬁc kinetic energy. Instantaneous measurements show acoustic waves propagating in the entrainment ﬁeld. Based on the separation of these waves and an estimated wave speed of 332.5m/s, a frequency estimation of 8240Hz is obtained, which compares well to the microphone measurement of 8301Hz. A phase average is used to determine the convective velocity of the coherent structures. A range of 0.42-0.54Uj is obtained and the velocity used to estimate the sound source location, with good agreement with previous research.

UR - https://www.scopus.com/pages/publications/85057293909

UR - https://www.scopus.com/pages/publications/85057293909#tab=citedBy

M3 - Conference contribution

SN - 9781624103865

BT - 22nd AIAA/CEAS Aeroacoustics Conference

PB - American Institute of Aeronautics and Astronautics Inc, AIAA

T2 - 22nd AIAA/CEAS Aeroacoustics Conference, 2016

Y2 - 30 May 2016 through 1 June 2016

ER -

Supersonic jet impingement on a cylindrical surface

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